1. Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Virginia, Charlottesville, Virginia;
2. Department of Medicine, Columbia University Irving Medical Center, New York, New York;
3. Division of Pulmonary and Critical Care Medicine, and
4. Department of Medicine, The University of Chicago Medicine, Chicago, Illinois;
5. Department of Radiology, National Jewish Health, Denver, Colorado;
6. Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee;
7. Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts;
8. Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, Università Cattolica del Sacro Cuore, Rome, Italy;
9. Department of Radiology, and
10. Interstitial Lung Disease Service, Royal Brompton Hospital, London, United Kingdom;
11. National Heart and Lung Institute, Imperial College, London, United Kingdom;
12. Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Baylor College of Medicine, Houston, Texas;
13. Pulmonary and Critical Care Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts; and
14. Division of Pulmonary and Critical Care Medicine, Department of Medicine, Weill Cornell Medicine, New York, New York